Scientist talks about development of brain in preborn baby

Here is some information on fetal brain development from Psychology Today:

The roots of human behavior, researchers now know, begin to develop early – just weeks after conception, in fact. Well before a woman typically knows she is pregnant, her embryo’s brain has already begun to bulge. By five weeks, the organ that looks like a lumpy inchworm has already embarked on the most spectacular feat of human development: the creation of the deeply creased and convoluted cerebral cortex, the part of the brain that will eventually allow the growing person to move, think, speak, plan, and create in a human way.

At nine weeks, the embryo’s ballooning brain allows it to bend its body, hiccup, and react to loud sounds. At week ten, it moves its arms, “breathes” amniotic fluid in and out, opens its jaw, and stretches. Before the first trimester is over, it yawns, sucks, and swallows, as well as feels and smells. By the end of the second trimester, it can hear; toward the end of pregnancy, it can see.

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